TESmart HKS401-M23
- Computers:
- 4
- Video Standard:
- HDMI 2.1
- Max Resolution:
- 8K@60Hz
- USB Hub Ports:
- 2x USB 3.0
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Manufacturer: TESmart Last updated: 2026-09-15
Where to buy
- TESmartGo to store
TESmart HKS401-M23 (4-Port HDMI 2.1 KVM Switch / 8K@60Hz / Zero-Delay Switching / $329.99) Review
If you're comparing 4-port 8K HDMI 2.1 KVM switches for gaming, the TESmart HKS401-M23 is one of TESmart's ADI-chip models built specifically around zero-delay switching.
It handles four computers into one monitor at up to 8K@60Hz, and drops to 1080p@240Hz if that's what you actually need for competitive play. Two USB 3.0 ports up front cover a headset and a flash drive. It's a solid pick if you're rotating between four machines and don't want a lag spike every time you switch.
Who it's for
Gamers and streamers switching between four PCs on one high-refresh or 8K monitor.
Specifications
Topology
| KVM Segment | Desk |
|---|
Video & Features
| Video Standard | HDMI |
|---|---|
| Max Resolution | 3840x2160 @60Hz 4:4:4; also 2560x1440@120Hz, 3440x1440@100Hz, 1920x1080@240Hz |
| USB Hub Ports | 2 |
| Audio Support | Yes |
Display continuity
| EDID Emulation | Yes |
|---|
In the box and price
| Price | 329.99 USD |
|---|
| Computers | 4 |
|---|---|
| Monitors | 1 |
| Video Version | HDMI 2.1 |
| Max Refresh Rate | 240Hz at 1080p |
| USB Version | USB 3.0 (5Gbps) |
| Power | DC 12V power adapter (included) |
| Switching Speed | Zero-delay switching, keyboard/mouse/peripherals available instantly |
| Included Cables | 4 KVM cables (HDMI+USB), power adapter, IR remote |
| Spec Score | 6.9 |
| USB-C Power Delivery | No |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- 4-PC gaming setups
- Users wanting instant, zero-delay switching
Not for
- Multi-monitor extended desktops
FAQs
What are the key specifications of the TESmart HKS401-M23 (4-Port HDMI 2.1 KVM Switch / 8K@60Hz / Zero-Delay Switching / $329.99)?
The TESmart HKS401-M23 (4-Port HDMI 2.1 KVM Switch / 8K@60Hz / Zero-Delay Switching / $329.99) is a KVM switch from TESmart. Key specs: Computers 4, Monitors 1, Video Standard HDMI, Video Version HDMI 2.1, Max Resolution 3840x2160 @60Hz 4:4:4; also 2560x1440@120Hz, 3440x1440@100Hz, 1920x1080@240Hz.
Who is the TESmart HKS401-M23 (4-Port HDMI 2.1 KVM Switch / 8K@60Hz / Zero-Delay Switching / $329.99) best suited to?
It suits 4-pc gaming setups, users wanting instant, zero-delay switching.
What are the drawbacks of the TESmart HKS401-M23 (4-Port HDMI 2.1 KVM Switch / 8K@60Hz / Zero-Delay Switching / $329.99)?
It is a poor fit for multi-monitor extended desktops.
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